Pub Date : 2019-11-01DOI: 10.1109/MOSATT48908.2019.8944122
A. Yakovlieva, S. Boichenko, J. Zaremba
The study is devoted to evaluation of exhaust gases emissions from aircrafts using conventional oil-derived jet fuel and alternative jet fuels, obtained by blending of conventional fuel with plant oil bio-additives. The evaluation was done by calculation of emission indexes of carbon dioxide, water vapor, sulfur oxide and nitrogen oxide and calculation of emission levels of each pollutant in a result of one standard landing – take-off cycle. In a result of the study it was found that samples of alternative jet fuels blended with plant oil bio-additives are characterized by lower emission level comparing to conventional jet fuels. These alternative jet fuels may also provide reduction of total emissions levels. Thus it was concluded that application of alternative jet fuels containing plant oil bio-additives may contribute to improvement of environmental safety of modern air transport.
{"title":"Improvement of Air Transport Environmental Safety by Implementing Alternative Jet Fuels","authors":"A. Yakovlieva, S. Boichenko, J. Zaremba","doi":"10.1109/MOSATT48908.2019.8944122","DOIUrl":"https://doi.org/10.1109/MOSATT48908.2019.8944122","url":null,"abstract":"The study is devoted to evaluation of exhaust gases emissions from aircrafts using conventional oil-derived jet fuel and alternative jet fuels, obtained by blending of conventional fuel with plant oil bio-additives. The evaluation was done by calculation of emission indexes of carbon dioxide, water vapor, sulfur oxide and nitrogen oxide and calculation of emission levels of each pollutant in a result of one standard landing – take-off cycle. In a result of the study it was found that samples of alternative jet fuels blended with plant oil bio-additives are characterized by lower emission level comparing to conventional jet fuels. These alternative jet fuels may also provide reduction of total emissions levels. Thus it was concluded that application of alternative jet fuels containing plant oil bio-additives may contribute to improvement of environmental safety of modern air transport.","PeriodicalId":115756,"journal":{"name":"2019 Modern Safety Technologies in Transportation (MOSATT)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122937979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/MOSATT48908.2019.8944118
F. Adamčík, M. Schrötter, M. Češkovič, J. Leško
The article deals with the concept of decentralized power distribution system and compares it with traditional power distribution system. It explains why such a system could not be used on previous aircraft generation in the past, what enables the use of the system in the next generation of aircraft and also presents the advantages and disadvantages of this system. The paper also deals with different possible solutions of new system implementation.
{"title":"The Necessity of Decentralized Aircraft Power Distribution System Implementation","authors":"F. Adamčík, M. Schrötter, M. Češkovič, J. Leško","doi":"10.1109/MOSATT48908.2019.8944118","DOIUrl":"https://doi.org/10.1109/MOSATT48908.2019.8944118","url":null,"abstract":"The article deals with the concept of decentralized power distribution system and compares it with traditional power distribution system. It explains why such a system could not be used on previous aircraft generation in the past, what enables the use of the system in the next generation of aircraft and also presents the advantages and disadvantages of this system. The paper also deals with different possible solutions of new system implementation.","PeriodicalId":115756,"journal":{"name":"2019 Modern Safety Technologies in Transportation (MOSATT)","volume":"75 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131704665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/MOSATT48908.2019.8944111
G. Kalapoš, J. Labun, P. Kurdel, M. Češkovič
Each vehicle antenna has a variety of electrical and mechanical properties that characterize it. Each one of the considered series of features evaluates the antennas from a different point of view. The electrical properties of antennas are characterized by its various energy, impedance and radiation parameters. The radiation parameters of the antenna can be objectively assessed according to the shape of its radiation - directional characteristics. The shape of the directional characteristic of the antenna is influenced by a number of interrelations between its electrical and mechanical properties. The best known relationship that affects the shape of the directional characteristic of the antenna is the ratio between its mechanical parameter - the antenna length “l” and the electrical parameter - the wavelength “λ” of the operating frequency. In the theory of antennas, it is a known ratio “l / λ”, which determines the shape of the directional characteristic of the antenna. This ratio, which shapes the electric current distribution on the antenna, can be evaluated or simulated relatively simply (but not exactly), but in practice it is very difficult (almost impossible) to measure it. The article deals with a specific approach to objective practical measurement of electric current distribution on a linear antenna in the VHF frequency band.
{"title":"Measurement of vehicle antenna parameters","authors":"G. Kalapoš, J. Labun, P. Kurdel, M. Češkovič","doi":"10.1109/MOSATT48908.2019.8944111","DOIUrl":"https://doi.org/10.1109/MOSATT48908.2019.8944111","url":null,"abstract":"Each vehicle antenna has a variety of electrical and mechanical properties that characterize it. Each one of the considered series of features evaluates the antennas from a different point of view. The electrical properties of antennas are characterized by its various energy, impedance and radiation parameters. The radiation parameters of the antenna can be objectively assessed according to the shape of its radiation - directional characteristics. The shape of the directional characteristic of the antenna is influenced by a number of interrelations between its electrical and mechanical properties. The best known relationship that affects the shape of the directional characteristic of the antenna is the ratio between its mechanical parameter - the antenna length “l” and the electrical parameter - the wavelength “λ” of the operating frequency. In the theory of antennas, it is a known ratio “l / λ”, which determines the shape of the directional characteristic of the antenna. This ratio, which shapes the electric current distribution on the antenna, can be evaluated or simulated relatively simply (but not exactly), but in practice it is very difficult (almost impossible) to measure it. The article deals with a specific approach to objective practical measurement of electric current distribution on a linear antenna in the VHF frequency band.","PeriodicalId":115756,"journal":{"name":"2019 Modern Safety Technologies in Transportation (MOSATT)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131517887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/MOSATT48908.2019.8944107
L. Kontriková, V. Graf, J. Hořínka, D. Teichmann
The bulk of regional international public airports (hereinafter ‘regional airports’) aim to develop their existing portfolio of new scheduled air flights. In the past, regional airports mainly served domestic air transport and linked the region with the main international airport (s) of the country. The current ambitions of regional airports tend to be higher, which is why regional airports are also trying to offer international direct flights to major continental international airports, where air transport can either be terminated or continued to all over the world (destination portfolio). The creation of a destination portfolio is a complicated issue and involves a number of steps. In the presented article, we will deal with one of the steps of the solution, namely the creation of a mathematical model, based on which it will be possible to effectively decide on a particular structure of the offer of air connections.
{"title":"A Model for Optimizing the Destination Portfolio of a Regional Airport with Transfer Times in Transit Destinations","authors":"L. Kontriková, V. Graf, J. Hořínka, D. Teichmann","doi":"10.1109/MOSATT48908.2019.8944107","DOIUrl":"https://doi.org/10.1109/MOSATT48908.2019.8944107","url":null,"abstract":"The bulk of regional international public airports (hereinafter ‘regional airports’) aim to develop their existing portfolio of new scheduled air flights. In the past, regional airports mainly served domestic air transport and linked the region with the main international airport (s) of the country. The current ambitions of regional airports tend to be higher, which is why regional airports are also trying to offer international direct flights to major continental international airports, where air transport can either be terminated or continued to all over the world (destination portfolio). The creation of a destination portfolio is a complicated issue and involves a number of steps. In the presented article, we will deal with one of the steps of the solution, namely the creation of a mathematical model, based on which it will be possible to effectively decide on a particular structure of the offer of air connections.","PeriodicalId":115756,"journal":{"name":"2019 Modern Safety Technologies in Transportation (MOSATT)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134280575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/MOSATT48908.2019.8944121
P. Petríček, J. Jevčák, L. Choma, H. Némethová, S. Makó, M. Pilat, F. Balla, V. Polishchuk
Investigating the issue of professional pilot training requires the identification and analysis of possible failures of the individual components (subsystems) of the integrated preparation and training. The aim of the paper is an indicative pre-research to examine the updated criteria for identifying the classes of states (situations) and classification of failure status of integrated training for flight preparation and military pilot training (its subsystem, element), as the part of the preparatory stage of the qualitative research of the issue. The paper focuses on defining the problem, the orientation analysis and the plan for further research of the issue within the preparatory stage of qualitative research to determine the updated criteria for basic stages of system failure. Failures of the Integrated Flight Preparation and Pilot Training System (IFPT) mean the identified deviations from the standard results of pilots in each subsystem. The paper answers the pre-research question of why research is to be carried out and which are the main factors that will determine the next course of scientific work to identify the failure phases of an integrated flight preparation and training system in a particular future pilot’s case.
{"title":"Pre-Research of Updated Criteria for Failures of Integrated Flight Preparation and Training","authors":"P. Petríček, J. Jevčák, L. Choma, H. Némethová, S. Makó, M. Pilat, F. Balla, V. Polishchuk","doi":"10.1109/MOSATT48908.2019.8944121","DOIUrl":"https://doi.org/10.1109/MOSATT48908.2019.8944121","url":null,"abstract":"Investigating the issue of professional pilot training requires the identification and analysis of possible failures of the individual components (subsystems) of the integrated preparation and training. The aim of the paper is an indicative pre-research to examine the updated criteria for identifying the classes of states (situations) and classification of failure status of integrated training for flight preparation and military pilot training (its subsystem, element), as the part of the preparatory stage of the qualitative research of the issue. The paper focuses on defining the problem, the orientation analysis and the plan for further research of the issue within the preparatory stage of qualitative research to determine the updated criteria for basic stages of system failure. Failures of the Integrated Flight Preparation and Pilot Training System (IFPT) mean the identified deviations from the standard results of pilots in each subsystem. The paper answers the pre-research question of why research is to be carried out and which are the main factors that will determine the next course of scientific work to identify the failure phases of an integrated flight preparation and training system in a particular future pilot’s case.","PeriodicalId":115756,"journal":{"name":"2019 Modern Safety Technologies in Transportation (MOSATT)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117193069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/MOSATT48908.2019.8944120
Daniel Gómez-Lechón Barrachina, Adrienn Boldizsár, Mate Zoldy, A. Torok
Neural networks have become the most popular family of algorithms of machine learning in today’s world. Neural networks are a computational model inspired by the behavior observed in the human brain. They consist of a set of units called neurons that are connected to transmit signals. This paper has gone through a basic overview of both neural networks and linear programming methods and compares them. Giving both examples of their applications in logistic problems as well as their advantages and disadvantages in their different aspects. It has been shown that when working with linear restrictions, transport, logistics, and optimization issues are better dealt with using linear programming methods. However, in the case of non-linear restrictions or objective functions, these methods will not be feasible. Therefore neural networks provide a valid and beneficial alternative to solve this type of problems.
{"title":"Can Neural Network Solve Everything? Case Study Of Contradiction In Logistic Processes With Neural Network Optimisation","authors":"Daniel Gómez-Lechón Barrachina, Adrienn Boldizsár, Mate Zoldy, A. Torok","doi":"10.1109/MOSATT48908.2019.8944120","DOIUrl":"https://doi.org/10.1109/MOSATT48908.2019.8944120","url":null,"abstract":"Neural networks have become the most popular family of algorithms of machine learning in today’s world. Neural networks are a computational model inspired by the behavior observed in the human brain. They consist of a set of units called neurons that are connected to transmit signals. This paper has gone through a basic overview of both neural networks and linear programming methods and compares them. Giving both examples of their applications in logistic problems as well as their advantages and disadvantages in their different aspects. It has been shown that when working with linear restrictions, transport, logistics, and optimization issues are better dealt with using linear programming methods. However, in the case of non-linear restrictions or objective functions, these methods will not be feasible. Therefore neural networks provide a valid and beneficial alternative to solve this type of problems.","PeriodicalId":115756,"journal":{"name":"2019 Modern Safety Technologies in Transportation (MOSATT)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129015463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-01DOI: 10.1109/MOSATT48908.2019.8944102
D. Megyesi, J. Leško, M. Schreiner
This article is focused on wireless communication among Unmanned Aerial Vehicles (UAVs) and a ground station (GS). Research in this article is oriented on establishing and transferring information between UAV device and GS in the case when direct radio link doesn’t exist. The idea of Fly Ad-Hoc Network (FANET) is implemented for establishing a multihop connection among devices. The theory and classification of routing protocols for FANET, as special type of Mobile Ad-Hoc Networks (MANET), are presented. In this article is proposed communication model providing communication in that case and its functionality is confirmed by set of simulations for different types of mobility models and levels of velocity for UAV.
{"title":"Evaluation of multihop UAV communication model based on protocol-independent and protocol-dependent methods","authors":"D. Megyesi, J. Leško, M. Schreiner","doi":"10.1109/MOSATT48908.2019.8944102","DOIUrl":"https://doi.org/10.1109/MOSATT48908.2019.8944102","url":null,"abstract":"This article is focused on wireless communication among Unmanned Aerial Vehicles (UAVs) and a ground station (GS). Research in this article is oriented on establishing and transferring information between UAV device and GS in the case when direct radio link doesn’t exist. The idea of Fly Ad-Hoc Network (FANET) is implemented for establishing a multihop connection among devices. The theory and classification of routing protocols for FANET, as special type of Mobile Ad-Hoc Networks (MANET), are presented. In this article is proposed communication model providing communication in that case and its functionality is confirmed by set of simulations for different types of mobility models and levels of velocity for UAV.","PeriodicalId":115756,"journal":{"name":"2019 Modern Safety Technologies in Transportation (MOSATT)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123637375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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